body {
    font-family: Arial, sans-serif;
    background: #000;   /* black background */
    color: #fff;        /* white text so it’s readable */
    text-align: center;
}
h1 { color:#333; }
a { color:#007bff; margin:0 10px; text-decoration:none; }
nav { margin:20px; }
form { margin:20px auto; width:300px; display:flex; flex-direction:column; }
input { padding:8px; margin:5px 0; }
button { padding:10px; background:#007bff; color:white; border:none; cursor:pointer; }